tofsee | 7e070b79eb7d7857b5bcd1d356b387e7e24292e096035e22938f5e24e6182e48

Analysis

max time kernel
143s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-02-2025 20:06

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General

Target

2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe
Size

12.1MB
MD5

0622524f0e26a6bfe6ca542938b1a04e
SHA1

8d134385afd883331538bf88d563445dd7a89072
SHA256

7e070b79eb7d7857b5bcd1d356b387e7e24292e096035e22938f5e24e6182e48
SHA512

b56e30fd1b2261006e8ddbd6d5f6629f5429beb3df0f82874053ee96fa44e607ae67a7ae6d18b2a6765104a06d588175c100e1088afe7d69149a0b709965237b
SSDEEP

6144:9LQ1p/2p5e+D2jFHO+iZoy6u9FlfrXEz9NQNQNQNQNQNQNQNQNQNQNQNQNQNQNQN:uTYe+D2jFu+iZoUFhAz

Score

10^/10

tofsee defense_evasion discovery execution persistence privilege_escalation trojan

Malware Config

Extracted

Family

tofsee

43.231.4.7

lazystax.ru

Signatures

Tofsee
Backdoor/botnet which carries out malicious activities based on commands from a C2 server.
trojan tofsee
Tofsee family
tofsee

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\zwhnvrvw = "0"	svchost.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

pid	Process
2760	netsh.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\zwhnvrvw\ImagePath = "C:\\Windows\\SysWOW64\\zwhnvrvw\\usbclhws.exe"	svchost.exe

Deletes itself 1 IoCs

pid	Process
2708	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2804	usbclhws.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2804 set thread context of 2708	2804	usbclhws.exe	43

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
320	sc.exe
2244	sc.exe
2088	sc.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

persistence privilege_escalation

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh	netsh.exe

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	netsh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	sc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	usbclhws.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 3044	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	31
PID 1620 wrote to memory of 3044	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	31
PID 1620 wrote to memory of 3044	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	31
PID 1620 wrote to memory of 3044	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	31
PID 1620 wrote to memory of 804	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	33
PID 1620 wrote to memory of 804	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	33
PID 1620 wrote to memory of 804	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	33
PID 1620 wrote to memory of 804	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	33
PID 1620 wrote to memory of 2088	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	35
PID 1620 wrote to memory of 2088	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	35
PID 1620 wrote to memory of 2088	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	35
PID 1620 wrote to memory of 2088	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	35
PID 1620 wrote to memory of 2244	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	37
PID 1620 wrote to memory of 2244	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	37
PID 1620 wrote to memory of 2244	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	37
PID 1620 wrote to memory of 2244	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	37
PID 1620 wrote to memory of 320	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	39
PID 1620 wrote to memory of 320	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	39
PID 1620 wrote to memory of 320	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	39
PID 1620 wrote to memory of 320	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	39
PID 1620 wrote to memory of 2760	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	42
PID 1620 wrote to memory of 2760	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	42
PID 1620 wrote to memory of 2760	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	42
PID 1620 wrote to memory of 2760	1620	2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe	42
PID 2804 wrote to memory of 2708	2804	usbclhws.exe	43
PID 2804 wrote to memory of 2708	2804	usbclhws.exe	43
PID 2804 wrote to memory of 2708	2804	usbclhws.exe	43
PID 2804 wrote to memory of 2708	2804	usbclhws.exe	43
PID 2804 wrote to memory of 2708	2804	usbclhws.exe	43
PID 2804 wrote to memory of 2708	2804	usbclhws.exe	43

C:\Users\Admin\AppData\Local\Temp\2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe
"C:\Users\Admin\AppData\Local\Temp\2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\zwhnvrvw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3044
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\usbclhws.exe" C:\Windows\SysWOW64\zwhnvrvw\
  2⤵
  - System Location Discovery: System Language Discovery
  PID:804
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" create zwhnvrvw binPath= "C:\Windows\SysWOW64\zwhnvrvw\usbclhws.exe /d\"C:\Users\Admin\AppData\Local\Temp\2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe\"" type= own start= auto DisplayName= "wifi support"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2088
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" description zwhnvrvw "wifi internet conection"
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:2244
- C:\Windows\SysWOW64\sc.exe
  "C:\Windows\System32\sc.exe" start zwhnvrvw
  2⤵
  - Launches sc.exe
  - System Location Discovery: System Language Discovery
  PID:320
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  - System Location Discovery: System Language Discovery
  PID:2760

C:\Windows\SysWOW64\zwhnvrvw\usbclhws.exe
C:\Windows\SysWOW64\zwhnvrvw\usbclhws.exe /d"C:\Users\Admin\AppData\Local\Temp\2025-02-02_0622524f0e26a6bfe6ca542938b1a04e_mafia.exe"
1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2804
- C:\Windows\SysWOW64\svchost.exe
  svchost.exe
  2⤵
  - Windows security bypass
  - Sets service image path in registry
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2708

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

System Services

T1569

Service Execution

T1569.002

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\zwhnvrvw\usbclhws.exe

Filesize
12.6MB

MD5
89c2178cfae03d6b5e41cfcf473514e4

SHA1
db1fdecc7f0ff28d9edd8de3429d7233e04f084d

SHA256
687140237a7d132897b9b03d5d02a5d5614ecddae19e095c4435aa8e694c0e6d

SHA512
f1dc1520e697a88a84aac99de9ede1bd397956a8580b8be60739add8980a494e904f8468418ef95f7176c46f788ec83294624c89af61f1e731d80235d19e6128

Download Submit
memory/1620-3-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1620-10-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download
memory/1620-13-0x0000000000400000-0x0000000000415000-memory.dmp

Filesize
84KB

Download
memory/1620-14-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1620-2-0x0000000000020000-0x0000000000033000-memory.dmp

Filesize
76KB

Download
memory/1620-1-0x0000000000560000-0x0000000000660000-memory.dmp

Filesize
1024KB

Download
memory/2708-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-8-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2708-16-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2708-15-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2708-18-0x00000000000D0000-0x00000000000E5000-memory.dmp

Filesize
84KB

Download
memory/2804-17-0x0000000000400000-0x00000000004C1000-memory.dmp

Filesize
772KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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